Freight-car-door lock.



G. W. GOOD.

FREIGHT CAR DOOR LOCK. APPLlCATlON FILED NOV. 17, 1914- v Patented Apr. 25, 1916.

4 SHEETS-SHEET l.

G. W. GOOD.

FREIGHT CAR DOOR LOCK.

APPLICATION FILED NOV. 12. 1914.

Tm: COLUMBIA PMNQGRARH co, \vAsHlNGTON. D. c.

G. W. GOOD.-

FREIGHT CAR DOOR LOCK. APPLICATION FILED NOV. 17, 1914.

Patented Apr. 25, 1916.

4 SHEETS-SHEET 3.

THE COLUMBIA PL'AYfOURAPH C0,, WASHINGTON, b. c.

G..W. GOOD.

FREIGHT CAR DOOR LOCK.

APPLICATION FILED NOV. 17. 1914.

Patentd Apr.-25, 1916.

4 SHEETS-SHEET 4.

THE COLUMBIA PLANOGRAPH co., WASHINGTON, n. c-

TIN %TATE% UFFTQE.

GEORGE W. GOOD, OF CHICAGO, ILLINOIS, ASEIGNOR OF GNE-THIRD TO J. J. "BURNET, OF CHICAGO, ILLINOIS, AND ONE-THIRD TO DQNALIJ 1R. MQBAIN, OF CLEVELAND,

OHIO.

FREIGHT-CAR-DOGR LOCK.

Lllltithtllid.

Specification of Letters Patent.

Patented Apr. 25, iltlllti.

Application filed November 1'?, 1914:. Serial No. 872,539.

To all whom it may concern: I

Be it known that I, GEORGE W. Goon, a citizen of the United States, residing at Chicago, Cook county, Illinois, have invented certain new and useful Improvements in Freight-Car-Door Locks, of which the following is a specification.

My invention relates to .a lock for freight cars which is adapted to lock the car door in positive manner as by means of a locking bolt so constructed that it cannot be opened or unlocked by any unauthorized person without detection.

As is well known, railroad companies sufl'er immense losses from the pilfering of freight from freight cars and while means, such as seals and the like, have been used for the purpose of preventing such pilfering, such means have not proven adequate inasmuch as seals may be broken and rescaled after pilfering has taken place. lVhile the seal may be used if desired in connection with my lock, yet such lock is designed to entirely avoid the necessity of any seal inasmuch as it is constructed and arranged to positively lock the door and is capable of being unlocked only by a special key. This key is of a considerable length and such length is rendered necessary by the provision of an elongated conduit extending along the car body and communicating with the locking mechanism. By reason of its length the key cannot be concealed by any one having it in his posses sion and hence an unauthorized person having such a key is at all times exposed to detection.

Speaking in general terms, my locking member includes a locking bolt, a locking device therefor, and an operating means for the bolt, the two latter parts projecting into one end of the elongated conduit which communicates with the locking mechanism and into which the key is insertible. This key is of special form, comprising two members, one a longitudinally movable plunger adapted to engage and unlock the locking device from the bolt, and the other being rotatable and adapted to engage the operating means for throwing the bolt to open position. By preference the bolt thus moved against a spring pressure and held in open position by a hand operated catch.

The various features of advantage and utility in my lock will be apparent from the description hereinafter given.

In the drawings, Figure 1 is an elevation of a car door and part of a car-body illustrating my invention incorporated therewith; Fig. 2 a sectional elevation on the line 22 of Fig. 4t; Fig. 3 a similar section showing bolt in open position; Figs. 4. 5, 6, and 7 sectional elevations on the lines 4t -4, 55, 6-6, and 7? respectively of Fig. 2; and Figs. 8 and 9 detail views of the key members.

While my invention in its broader aspect may partake of different forms, I prefer the particular form and arrangement herein shown and about to be described, but it will be understood that such specific embodiment is illustrated and described for the purposes of a clear and definite understanding of the invention and without any unnecessary limitation thereto. that the specific construction and character of the car door as well as its fixtures, other than the lock, are immaterial.

As shown in Fig. 1 the car body 1 is provided with a car door 2 which is adapted in its closed position to abut against and be stopped by the door jamb 3 of the door opening. As usual, the door is of the slid ing type, being hung by the door hangers 4L runnlng on the track 5.

At any suitable or desired position verticall; with respect to the door jamb but preferably toward the central part of the door I locate the locking mechanism.

adapted to contain and support the work ing parts therewithin. In the present instance this casing projects from the side of the car body and is attached thereto by means of the bolts 6 passing through the body and secured by nuts 7. Within the casing there operates a locking bolt 01' latch 8 which is adapted to be moved longitudinally and to be projected outwardly from the casing and into a locking member on It will also be understood This mechanism comprises a suitable casing 6 llO end a stop for the outward projection of the bolt and at its inner edge a shoulder for the locking device hereinafter described. This upper edge of the locking bolt is also provided with a cross slot 8 within which is adapted to drop the projecting wing 11 of a locking rod 11, which wing rides upon the upper horizontal edge of the locking bolt until in the inward movement of such bolt the slot 8 is opened whereupon such wing and rod will drop thereinto and hold the locking bolt against longitudinal movement in either direction. When this looking rod is in its operative position, as shown in Fig. 3, its lower end projects through an opening in the bottom of the lock casing with the result that the operator is enabled to push upwardly thereupon in the manner of a push button, and thereby release the locking rod and permit the spring 10 to force the locking bolt to its operative position. The upper end of the rod 11 is guided between a wall 1 of the bolt opening and a lug 1 therein.

The locking device for holding the looking bolt in its operative position consists of a plunger 12 guided at its upper end in a manner similar to the rod 11 and provided with a lateral wing 12 which is adapted to engage behind the shoulder formed at the inner end of the projection 8 thereby holding the locking bolt in locked position.

The casing is provided with a tubular extension 13 which is exteriorly screw threaded and receives the upper end of a pipe or conduit 14 through which, from the other end thereof, the key is arranged to be inserted. This extension or boss 13 has a central opening forming a bearing for an oscillating trunnion or shank 15 which is operatively connected with the locking bolt in suitable manner as by means of the crank arm 16 secured to or forming a part of the upper end of theshank and having its free end slotted so as to engage a depending portion or pin 17 on the lower edge of the locking bolt. \Vhen the trunnion is oscillated the locking bolt is moved longitudinally., The trunnion has a central bore through which the lower end of the-locking plunger passes, such plunger, when in locked position, extending below the line of the trunnion, as shown in Fig. 2, but adapted to be forced upwardly to unlocked position by one of the members of the key, as hereinafter explained.

The lower end of the trunnion is provided with suitable means for engagement by the key and in the present instance such means consists of angular or corrugated formation of the exterior surface of such trunnion, as shown in Fig. 5, this somewhat complicated formation, as compared with the simple formation like a square, being preferred as it increases the difiiculty in the making of a false or spurious key by any unauthorized person.

The key consists of two members, one a plunger having a longitudinal movement for unlocking the locking device 12 and the other a wrench portion adapted to engage the trunnion l5 and to be rotated to thereby rotate the trunnion and withdraw the bolt 8 from looking position. These two members, while having separate movements, are connected together so as to constitute a single instrument or key.

Referring to the specific construction of key herein shown, the wrench portion consists of a tube 18 provided at its lower or outer end with a right angled handle 19 secured thereto in any suitable manner. The upper or inner end of this tube is countersunk and also provided with internal screw threads so as to receive a socket 20 provided with external screw threads screwing on to the screw threads of the tube. This socket has a central bore of different diameters, the upper or larger diameter 20 being formed with corrugations complementary to and engaging the externals on the trunnion 15. The middle portion 20 of the bore is of a size to receive the lower end of the locking plunger 12. The lowermost portion 20 of such bore is preferably conical and communicates directly with the interior of the tube 18. It will be understood that when the tube is inserted into the conduit or pipe 14, the socket 20 will engage the trunnion 15 and enable the latter to be operated when the tube is partially rotated by means of its handle.

The unlocking member of the key consists of a plunger 21 having at its lower or outer end a handle 22. This plunger extends axially of the tube 18 and in such position as to contact with lower end of the locking plunger 12 and to thereby raise the latter from its seat to permit the locking bolt 8 to then be withdrawn from locking position by sliding it to the left in Fig. 2. In order to prevent the detachment of this plunger or looking bolt opener from the other member of the key, suitable means may be em ployed, such as a cross pin 23 projecting from the plunger toward its lower end and cooperating with the bushing 24- forced into the lower end of the opening through the tube 18. The outer extent of movement of this plunger, as shown in Fig. 6, is limited by the contact of the pin 23 with the inner end of the bushing 24:. It will be understood that when the plunger is forced upwardly, that is inwardly, it will contact the lower end of the locking plunger 12, and thereby raise the wing 12 thereof from locking engagement with the bolt 8.

The locking bolt or latch S cooperates with a member on the car door such as the hasp 25 which is pivoted in an eye 26 formed by one end of the plate 26 secured to the car door. This hasp has on its inner edge which is presented to the look a socket or recess 25 of a size to receive the locking bolt 8 which is adapted to be projected thereinto. The hasp is also provided intermediate its length with a slot 25" adapted to receive the outwardly extending lug 27 of a plate 27 secured to the car door. When the locking bolt 8 is in looking position, it has been projected into the socket 25 of the hasp and the door with the result that such hasp is in locked condition inasmuch as the hasp cannot be swung outwardly so as to clear the lug 27 which is necessary in order to permit the door to be slid to open position.

Describing the operation and starting with the open position of the lock shown in Fig. 8 wherein the locking bolt 8 is shown in its left hand position and the hasp in its closed position, the locking rod 11 is forced inwardly, that is upwardly, thereby releasing the locking bolt 8 and permitting the spring 10 to force the bolt outwardly, that is to project the same into the socket of the hasp. It will be understood that at this time the key is not in engagement with the trunnon 15, as is shown in Fig. 3, this figure illustrating the position of the parts including the key just as the lock has been unlocked. The outward movement of the bolt 8' is limited by the contact of the forward edge of the lug 8 with the interior of the case and such bolt is held in looking position by means of the plunger 12 which drops from its elevated position on the top edge of such lug to its lowermost position behind the rearward edge of the lug, as shown in Fig. 2.

Next describing the unlocking operation, the key is inserted as shown in Fig. 2 The first operation is the longitudinal inward movement of the plunger 21 with the result that the plunger 12 is raised from its locking position to an elevated position which will clear the lug 8 of the locking bolt. The tube 18 is now turned, that is partially rotated, with the result that inasmuch as it is operatively connected with the outer end of the trunnion 15, such trunnion will be turned and the bolt 8 will be withdrawn from its locking position, that is moved to the left in Fig. 2 against the tension of the spring. The wing 11 of the locking rod 11 will thereupon drop into the slot 8* of the bolt and hold the bolt in its open or unlocked position against the tension of the spring 10.

It will be understood that the locking mechanism may be placed at any desired height with respect to the car door and also that the position of the conduit lei may be changed as, for instance, the same may be extended upwardly so that it will be necessary for the operator to insert the key while standing upon the roof of the car, thereby 1. A car door lock comprising, in co1nbination with a car door, locking mechanism having a conduit for a key which conduit is arranged substantially in a plane parallel. to the plane of the car door, which conduit is elongated to enforce the employment of an elongated key, and an elongated key adapted to be received by such conduit for operating the locking mechanism.

2. A car door lock comprising, in combination with a car door, locking mechanism including a rotatable member, a conduit arranged in a plane substantially parallel with the plane of the car door and terminating adjacent said rotatable member, said conduit being elongated to enforce the employment of an elongated key, and an elongated key insertible in the conduit to engage said member, and to rotate it for operating the locking mechanism.

3. A car door lock comprising, in combination with a car door, locking mechanism having an elongated conduit or a key, such conduit being arranged in a plane substantially parallel with the plane of the car door, a locking device for holding such mechanism in locked condition, and an elongated key adapted to be received by such conduit and arranged to cooperate with both the locking device and the locking mechanism.

' l. A car door lock comprising locking mechanism having an elongated conduit for a key, and an elongated key adapted to be received by such conduit "for operating the locking mechanism, said key comprising ii two members, one having a longitudinal movement and the other a rotary movement respectively for unlocking said mechanism and turning the lock proper thereof.

5. A car door lock comprising locking 1" mechanism including a bolt and operating means therefor, and mechanism having an elongated conduit into one end of which said means project, and an elongated key insertible into such conduit and arranged to engage and actuate said operating means. 6. A car door lock comprising locking mechanism including a bolt and operating means and a locking device for the latter, said mechanism having an elongated conduit into one end of which said. operating means and locking device project, and an elongated key insertible into such conduit and arranged to engage and actuate said operating means and locking device.

A car door lock comprising locking mechanism including a bolt, a locking device therefor, and a rotatable member for operating the bolt, an elongated conduit which receives the key into one of whose ends said locking device and member project, and an elongated key insertible into the conduit and adapted to cooperate first with the locking device and then with the member.

8. A car door lock comprising locking mechanism including a bolt, a locking device therefor, and a rotatable member for operating the bolt, an elongated conduit which receives the key into one of whose ends said locking device and member project, and an elongated key insertible into the conduit and adapted to cooperate with the locking device and member, said key comprising two members, one longitudinally movable to operate the locking device and the other rotarily movable to operate said rotatable member.

9. A car door lock comprising locking mechanism including a bolt, a locking device therefor, and a rotatable member for operating the bolt, an elongated conduit which receives the key into one of whose ends said locking device and member project, said locking device passing axially through said member and projecting therefrom, and an elongated key insertible into the conduit and adapted to cooperate first with the locking device and second with the said rotatable member.

10. A car door lock comprising locking mechanism including a bolt, a locking device therefor, and a rotatable member for operating the bolt, an elongated conduit which receives the key into one of whose ends said locking device and member project, said locking device passing axially through said member and projecing therefrom, and a key insertible into the conduit and comprising two members, one longitudinally movable tooperate the locking device and the other rotarily movable to operate the rotatable member.

11. A car door lock comprising locking mechanism including a bolt, a locking device therefor, and a rotatable member for operating the bolt, an elongated conduit which receives the key into one of whose ends said locking device and member project, said locking device passing axially through said member and projecting therefrom, and a key insertible into the conduit and comprising two members, one longitudinally movable to operate the locking device and the other rotarily movable to operate the rotatable member, said member having coacting parts to prevent detachment of one member from the other but permitting their separate movements.

12. A car door lock comprising locking mechanism including a bolt, a locking device therefor, and a rotatable member for operating the bolt, an elongated conduit which receives the key into one of whose ends said locking device and member project, said locking device passing axially through said member and projecting there from, and a key insertible into the conduit and comprising two members, one longitudinally movable to operate the locking device and the other rotarily movable to operate the rotatable member, the last named member of the key comprising a tube having a handle at one end and at its other end a part engaging said rotatable member which operates the bolt, and the first named member of the key comprising a plunger extending through the tube.

13. A car door lock comprising locking mechanism including a bolt, a locking device therefor, and a rotatable trunnion operatively connected with the bolt, an elongated conduit which receives the key and into one of whose ends said locking device and trunnion project, and an elongated key insertible into the conduit and adapted to cooperate with the locking device and trunnion.

14. A car door lock comprising locking mechanism including a bolt, a locking device therefor, and a rotatable trunnion operatively connected. with the bolt and haw ing an. engaging portion, an elongated conduit which receives the key and into one of whose ends said locking device and trunnion project, and an elongated key insertible into the conduit, having a complementary portion to engage said trunnion and having a member adapted to cooperate with the locking device to unlock the bolt.

15. A car door lock comprising locking mechanism including a. bolt, a locking device therefor, and a rotatable trunnion operatively connected with the bolt and having an angular surface at its outer end, an elongated conduit which receives the key and into one of whose ends said locking device and trunnion project, and an elongated key insertible into the conduit and having at one end a socket of a complementary angular form to engage the trunnion and also having 'a member adapted to cooperate with the locking device to unlock the bolt.

GEORGE XV. GOOD.

Witnesses S. E. HIBBEN, ROBERT DOBBERMAN.

Copies of this patent may be obtained for five cents each, by addressing; the Commissioner of Patents,

- Washington, D. C. 

